Andrew Grant DeYoung, condemned to death in America for the murder of his parents and sister, has been executed on camera, the first time in nearly two decades a US execution has been filmed.

DeYoung was executed on Thursday by a three-drug lethal injection using the anesthetic pentobarbital, which is also used to euthanise animals......Several US states which permit executions have switched to pentobarbital because of a shortage of sodium thiopental, but its use is controversial.

Lawyers for another condemned man from Georgia, Gregory Walker, had asked a court to allow DeYoung's execution to be filmed, arguing that it would provide critical evidence that pentobarbital should not be used in executions.......The state of Georgia tried to stop this, arguing that a videographer would disrupt security plans. But the Georgia State Supreme Court on Thursday upheld a local court's decision to allow the filming.